Hsi-Hsien Yang 1, Ching-Mi Yang2, Chih-Ho Wong2, Chu-Chin Hsieh3, Hsiao-Hsuan Mi4, Tze-Wen Chi1

  • 1 Department of Environmental Management, Chaoyang of Technology, Wufeng, Taichung 413, Taiwan, ROC
  • 2 Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan, ROC
  • 3 Department of Environmental and Safety Engineering, National Yunlin University of Science and Technology, Touliu, Yunlin 640, Taiwan, ROC
  • 4 Department of Environmental Engineering and Health, Chia-Nan University of Pharmacy and Science, Tainan County 717, Taiwan, ROC

Received: May 31, 2001
Revised: May 31, 2001
Accepted: May 31, 2001
Download Citation: ||https://doi.org/10.4209/aaqr.2001.06.0007  

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Cite this article:
Yang, H.H., Yang, C.M., Wong, C.H., Hsieh, C.C., Mi, H.H. and Chi, T.W. (2001). Emission and Dry Deposition Characteristics of Metal Elements from Engineering Construction Sites. Aerosol Air Qual. Res. 1: 69-81. https://doi.org/10.4209/aaqr.2001.06.0007




In order to explore the emission characteristics of particulate and its particle-bound metal elements, eight construction sites in southern Taiwan were investigated during the period between Dec. 1996 and May 1997. Total suspended particulate (TSP) samples were collected with PS-1 samplers, and the dry deposition particles were sampled by dry deposition plates with smooth surfaces. The emission factors of particulate matter from construction sites were estimated using a dispersion model. Twenty elements, including Al, Ca, Fe, Mg, Na, Pb, Zn, Ni, V, Ba, Mn, Cr, Cu, Cd, Sr, Ag, Mo, Sb, As, and Ti, were analyzed in this study. The results indicated that dry deposition fluxes of TSP ranged between 762 and 3760 mg/m2-day with an average of 2230 mg/m2-day. The dry deposition velocities (Vd) of TSP varied in a narrow range between 2.63 to 5.55 cm/s with an average of 4.31 cm/s and a standard deviation of 1.21 cm/s. The major elemental components of particulate matter in the ambient air at construction sites were found to be crustal elements including Al, Ca, Fe, Mg and Na, These compositions were similar to those of the road dust. Dry deposition fluxes of crustal metals were much higher than those measured at urban and suburban sites.

Keywords: Particulate; Construction; Metal elements; Dry deposition; Emission factor

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